I ran into this problem. As a preface: this plugin is usually very frustrating to do anything because of how opaque and useless error messages are. However, what really meant in my case is one of several things that I had to do to fix this problem:
- That the access group on Github that I set up for my backup did not have write access.
- At some point, the repo was mistakenly written in the config by me (
git@github / instead of git@github : . - Finally, this plugin seems to have rebooted a bit. After changing the setting, restart Jenkins to get new error messages that better help diagnose the problem.
In addition, the syslog information in hudson.plugins.scm_sync_configuration especially useful and often more known than common page errors.
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